| Official Name: | Sadd-e Chamran |
| Native Name: | سدچمران |
| Settlement Type: | Village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Golestan |
| Subdivision Type2: | County |
| Subdivision Name2: | Kalaleh |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Central |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Kongor |
| Population As Of: | 2006 |
| Population Total: | 1,011 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 37.4°N 55.4333°W |
Sadd-e Chamran (Persian: سدچمران, also Romanized as Sadd-e Chamrān; also known as Sadd) is a village in Kongor Rural District, in the Central District of Kalaleh County, Golestan Province, Iran.
As of the 2006 census, its population was 1,011, in 215 families.